PROLOADT1: Single module for single winch cranes
PROLOADT2: Dual module for twin winch cranes

Surge voltage protection unit which serves to limit eventual surge voltages in intrinsically safe circuits.
For installation with the RCI-4000IS and RCI-4100IS systems.
Type of module: PLUGTRAB PT 4-EX(I)-24DC-ST(DIN rail mounted)
EC-Type Examination Certificate Number: KEMA 00ATEX1099 X
Equipment marking: Shall include EEx ia IIC T4...T6
Ambient temperature range:
- -40°C to +40°C for temperature class T6
- -40°C to +55°C for temperature class T5
- -40°C to +80°C for temperature class T4
Electrical data:
- Ui = 30
- VIi = 500 mA
- Pi= 3 W
- The effective internal capacitance Ci= 1.1 nF
- The effective internal inductance Li= 1 uH
Dimensions: 140mm (L) x 140mm (W) x 107mm (D)
Mounting: Via a mounting bracket (Part Number: KIT4000LP)
Glands for cable entry: 20mm HEYCO glands
Weight: 3.8kg (approx) including mounting bracket